Determination of wax appearance temperature (WAT) in paraffin/solvent systems by photoelectric signal and viscosimetry
The wax appearance temperature (WAT) is the temperature at which the first wax crystals start to form, on cooling of paraffin/solvent systems. There are a number of different WAT determination methods, including: density and viscosity variation, differential scanning calorimetry, laser dispersio...
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Principais autores: | , , , , |
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Formato: | article |
Idioma: | English |
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Associação Brasileira de Pesquisa e Desenvolvimento em Petróleo e Gás
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Endereço do item: | https://repositorio.ufrn.br/handle/123456789/45112 |
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Resumo: | The wax appearance temperature (WAT) is the temperature at which the first wax crystals start to form,
on cooling of paraffin/solvent systems. There are a number of different WAT determination methods,
including: density and viscosity variation, differential scanning calorimetry, laser dispersion, and
chromatography. The photoelectric method is used in this work based on the principle that the
appearance of wax crystals modifies the transparency of the system. A comparison was made between
WAT results obtained by photoelectric signals and viscosimetry. It was observed that the WAT results
obtained by photoelectric signals are anticipated when compared with the viscosimetry data,
demonstrating the enhanced sensitivity of the developed method |
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